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A piano tuner stretches a steel piano wire with a tension of 964N . The wire is 0.400m long and has a mass of 3.60g.
Part A What is the frequency of its fundamental mode of vibration?
Part B What is the number of the highest harmonic that could be heard by a person who is capable of hearing frequencies up to 1.00×104Hz?
The ends of a 20cm long, 2.0cm diameter are maintained at 0°C and 100°C, What material is the rod made of
A 2.3A current is flowing in a 25H inductor. A switch is opened, interrupting the current in 1.0ms. Find the induced emf in the inductor
A mass of 1.7kg stretches a vertical spring 0.313 m. If the spring is stretched an additional 0.13m and released, how long does it take to reach (new) equilibrium position again.
In reaching her destination, a backpacker walks with an average velocity of 1.19m/s, due west. This avg velocity results bc she hikes for 5.7 km with an avg velocity of 2.18 m/s due west, turns around, and hikes with an avg velocity of 0.511m/s du..
A solenoid is used as a rotor of an electrical motor. It is 10 cm long and 2 cm in diameter. The wire wrapped around it makes 1000 turns and has a resistance of 100 Ohms. find the electrical power delivered by the battery
The refractive index of a material is 2.58. What is the critical angle for a light ray
The distance between a loudspeaker and the left ear of a listener is 1.60 m. compute the time required for sound to travel this distance if the air temperature is 20° C.
A 69 kg boy and a 40 kg girl use an elastic rope while engaged in a tug-of-war on an icy, frictionless surface. If the acceleration of the girl toward the boy is 3.0 m/s2, find out the magnitude of the acceleration of the boy toward the girl.
Two narrow slits are illuminated by a laser with a wavelength of 593 nm. Calculate the distance between the two slits
A 20 wood ball hangs from a 1-long wire. The highest tension the wire can withstand without breaking is 600. A 0.90 projectile travelling horizontally hits and embeds itself in the wood ball. What is the largest speed this projectile can have with..
A tall tree is growing across a river from you. You would like to know the distance between yourself and the tree,as well as its height, How far away is the tree
A duck has a mass of 2.6 kg. As the duck paddles, a force of 0.11 N acts on it in a direction due east. In addition, the current of the water exerts the force of 0.12 N in a direction of 44° south of east. When these forces begin to act, the velocity..
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